James it



(fie Model.)

J. H. NORTHROP.

LOOM SHUTTLE.

No. 454,807. Patented June 23, 1891.

I I [2 hurt Jom-ruesjfwonflvro a UNITED STATES PATENT OFFICE.

JAMES H. NORTHROP, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO GEORGE DRAPERd: SONS, OF SAME PLACE.

LOOM-SHUTTLE.

SPECIFICATION forming part of Letters latent No.454,80'7, dated June 23,1891. Application filed May 10, 1890. Serial No. 351,227. (No model.)

To all whom it may concern: other usual or equivalent manner. The act-Be it known that I, JAMES H. NORTHROP, a ing faces of the jaws or arms a1), shown as subject of the Queen of Great Britain, but at somewhatconcaved in cross-section (see Fig. present residing at I-Iopedale,county of 5) and represented as provided with a series 5 Worcester,State of Massachusetts, have in of grooves or notches at theirinnersides, (see vented an Improvement in Loom-Shuttles, of Fig. 3,) arelocated next to and substantially which the following description, inconnecparallel to the inner side walls of the shuttle. tion with theaccompanying drawings, is a These jaws are free to yield to a limitedeX- specification, like letters on the drawings reptent to a bobbinwhile being pushed into po- 1o resenting like parts. sition between themfrom oneas, for in- This invention has for its object to imstance, thetop side of the shuttlethe bobprove the construction of bobbins andshutbin being removable from the other or bottles employed in that classof loom wherein tom side of the shuttle, this being essential the weftis automatically supplied to the shutfor the success of this invention.The jaws, I 5 tle while the loom is in motion, myimproved by reason oftheir concaved inner or acting bobbin and shuttle being so constructedthat faces, grasp and hold the bobbin and do not a bobbin containingweft may be automatirequire a spindle in the bobbin. cally introducedinto the shuttle and be there- The head of the bobbin 0, of wood orother after removed automatically on the occurusual or suitablematerial, is represent-ed as 2o rence of any fault in the delivery ofthe weft. provided with two annular projections or One part ofmyinvention consistsin aloomrings 0, adapted to enter the grooves orshuttle and attached bobbin-holding jaws notches made'in the inner oracting faces of adapted to receive a bobbin between them the jaws, two,or it may be more, such projecfrom one side of the shuttle and to holdthe tions enabling the b0bbin,while being pushed 2 5 same and thereafterpermit the bobbin to be into position between the jaws, to bemaindischarged from between the said jaws at the tained substantially inhorizontal position, other side of the shuttle, as will be described.the said projections, after the bobbin has been Other parts of myinvention will be herepushed into place, aiding in keeping thebobinafter described, and defined in the claims bin in centralhorizontal position in the shut- 8o 0 at the end of this specification.tle. The jaws have, it will be seen, a greater Figurelin topviewrepresentsashuttle havnumber of grooves or notches than the bobingone form of jaw embodying my invention, bin has projections, suchprovision compenthe bobbin being shown in full lines and the sating forvariations in the longitudinal poyarn load thereon being indicated bydotted sition of the shuttle in the shuttle-box when 8 5 5 lines; Fig.2, a partial section in the irregular the bobbin is being pushed intoplace be- .dotted line 00, Fig. 1; Fig. 3,a partial longituditween thejaws, and enabling the bobbin to nal section of the shuttle, cuttingthrough be properly received in and held by the jaws both jaws of theclamp in the line 00', Fig. 5; notwithstanding slight variations in theposi Fig. 4, a section of the shuttle in the line m tion of theshuttlelongitudinally. 9 0 Fig. 1; Fig. 5, a section of the shuttle in theBelieving myself to be the first to provide line x Fig. 1; Fig. 6, adetail, looking at the a shuttle with yielding bobbin-holding jaws sideof the shuttle which is uppermost in Fig. or devices to yield orseparate as a bobbin 1; Fig. 7, a section in the line 00 Fig.1. Fig.head is pushed into operative position be- S is a modification showingjaws with projectween them,I do notintend to liinitthis inven- 45 tionsto enter grooves in the bobbin. tion to any special form of yieldingjaw, but The shuttle-body A, of wood or other usual consider as withinthe scope of my invention material and of usual shape, is shown asproany other form of jaw having the properties vided with a pair ofyielding bobbin-holding referred to. It is obvious that my inventionjaws a 1), (represented as forming part of a would be substantially thesame if the con- I00 50 metal loop or strap a,) suitably inserted orstruction was just the reverse, as in Fig. 8, held in the shuttle-bodyby a block a or in where the jaws are shown as provided with projectionsto enter notches in the head of the bobbin; but the projections on thehead of the bobbin are preferable as affording greater strength, for thesaid projections c may be of metal bent to form rings. The shuttle-bodyis cut away at (Z down to and into the usual delivery opening or eye 4:in the-side wall of the shuttle, and the shuttle at one side the saidslot has applied to it byscrews 10 a horn (1 provided with a point, asat cl, under which the weft-thread is automaticallydrawn or passed bythe movement of the shuttle in the shed after the bobbin has been pushedinto the shuttle from a suitable hopper or guideway, as in myapplications, Serial No. 351,228 and No. 380,494, the outer end of theweft-thread carried by the bobbin being connected with some fixed partof the hopper or loom, which causes the said thread to be held while thebobbin is being pushed into the shuttle and the latter is shot acrossthe shed, during which operation the shuttle thread is automaticallyinserted in the shuttle deliveryeye. The delivery-eye t is shown aslined by a metal plate 8 bent to leave an open side, the plate having alip 3, down behind and over the point of which the weft is passed as itenters the said eye 4, the lip 3 preventing the escape of the threadfrom the said eye. In this shuttle the weft-thread is drawn off the endof the bobbin through the transverse opening or passage in the plate 0and out through the side of the shuttle.

It is not desired or intended to limit this invention to the exact formof the device or slot whereby the shuttle is made self-threading, thusavoiding drawing the end of the Weft-thread out through the delivery-eyet, as when the eye is not slotted; and instead of the particular plateor form of slot shown I may employ any other usual device or form ofslotcommon to other self-threading shutt es. r

In another application, Serial No. 352,960, filed May 23, 1890, I haveshown a spindle having a head which may be passed into a holder from oneside of the shuttle and out from the holder at the opposite side of theshuttle, the head of the spindle and the holder being so shaped as toprevent longitudinal movement of the spindle in the shuttle, the saidapplication having been filed to protect my invention, broadly, asapplied to spindles as contradistinguished from bobbins withoutspindles, as in the present invention.

It is not intended to limit this invention to the exact form of bobbinshown.

My applications, Serial Nos. 351,228 and 380A94c, show means forautomatically supplying a bobbin or a spindle to the shuttle anddischarging it therefrom.

I am aware that bobbins have been provided with a ring of wire toprevent the head of the bobbin from being split.

1 claim 1. A loom-shuttle and attached bobbinholding jaws, adapted toreceive abobbin be tween them from one side of the shuttle and .to holdthe same and thereafter permit the bobbin to be discharged from betweenthe said jaws at the other side of the shuttle, substantially asdescribed.

2. A loom-shuttle having a self-threading slot or eye and bobbin-holdingjaws, and a bobbin adapted to be grasped and held between the said jaws,to operate substantially as described.

3. A 1OOD1-Sllt1ttl0 provided with bobbinholding jaws having a series ofnotches or projections, in combination with a bobbin provided withproject-ions or notches in less number than the notches or projectionsof the jaws, as and for the purpose set forth.

4. A bobbin for use in a loom-shuttle, the said bobbin having its headprovided with two or more annular projections or grooves, for thepurpose set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JAMES H. NORTHROP.

\Vitnesses:

F. J. DUTOHER, H. W. BEATTY.

